Hi Hannes,

We noticed the below warnings on

commit beba1fc005a56a0597d01d3f381e533427856f5d ("[SCSI] Add EVPD page 0x83 to sysfs")

[   13.210464] sd 0:0:0:0: [sda] Attached SCSI disk
[   13.229569]  sdb: sdb1 sdb2
[   13.230918] sd 1:0:0:0: [sdb] Attached SCSI disk
[   13.272657] igb 0000:01:00.0: eth1: (PCIe:2.5Gb/s:Width x4) 00:30:48:cf:17:26
[   13.276044] ------------[ cut here ]------------
[   13.276051] WARNING: CPU: 7 PID: 1484 at mm/page_alloc.c:2513 __alloc_pages_nodemask+0x1df/0x986()
[   13.276053] Modules linked in:
[   13.276056] CPU: 7 PID: 1484 Comm: kworker/u50:5 Not tainted 3.14.0-rc7-wl-ath-03670-g3c3af80 #1
[   13.276057] Hardware name: Supermicro X8DTN/X8DTN, BIOS 4.6.3 01/06/2010                        
[   13.276062] Workqueue: events_unbound async_run_entry_fn                
[   13.276065]  0000000000000000 ffff880417b2ba18 ffffffff81a48792 0000000000000000
[   13.276067]  ffff880417b2ba50 ffffffff810de155 ffffffff8118c3ab 00000000001040d0
[   13.276069]  0000000000000000 0000000000000002 0000000000000000 ffff880417b2ba60
[   13.276070] Call Trace:
[   13.276076]  [<ffffffff81a48792>] dump_stack+0x4d/0x66
[   13.276079]  [<ffffffff810de155>] warn_slowpath_common+0x7f/0x98
[   13.276082]  [<ffffffff8118c3ab>] ? __alloc_pages_nodemask+0x1df/0x986
[   13.276085]  [<ffffffff810de21c>] warn_slowpath_null+0x1a/0x1c
[   13.276087]  [<ffffffff8118c3ab>] __alloc_pages_nodemask+0x1df/0x986
[   13.276091]  [<ffffffff814eb871>] ? __freed_request+0x42/0x96
[   13.276093]  [<ffffffff814eb90f>] ? freed_request+0x4a/0x69
[   13.276095]  [<ffffffff814ec163>] ? __blk_put_request+0xfe/0x15e
[   13.276099]  [<ffffffff811c217d>] alloc_pages_current+0xc7/0xe2 
[   13.276102]  [<ffffffff811889cd>] __get_free_pages+0xe/0x3b    
[   13.276104]  [<ffffffff811a1c48>] kmalloc_order_trace+0x2b/0x98
[   13.276108]  [<ffffffff811cb530>] __kmalloc+0x38/0x1f2
[   13.276112]  [<ffffffff815d0362>] scsi_attach_vpd+0x36/0x29a
[   13.276114]  [<ffffffff815d90ea>] scsi_probe_and_add_lun+0x8f6/0xa2b
[   13.276117]  [<ffffffff815d947b>] __scsi_add_device+0xd3/0x10f
[   13.276121]  [<ffffffff816c1ee0>] ata_scsi_scan_host+0x82/0x16e  
[   13.276124]  [<ffffffff816be336>] async_port_probe+0x4a/0x4f   
[   13.276127]  [<ffffffff810ffeae>] async_run_entry_fn+0x5f/0x115
[   13.276130]  [<ffffffff810f5c72>] process_one_work+0x1f7/0x396 
[   13.276131]  [<ffffffff810f62fc>] worker_thread+0x1e8/0x2e2
[   13.276133]  [<ffffffff810f6114>] ? rescuer_thread+0x2d4/0x2d4
[   13.276136]  [<ffffffff810fb273>] kthread+0xdb/0xe3
[   13.276139]  [<ffffffff810fb198>] ? kthread_create_on_node+0x16f/0x16f
[   13.276142]  [<ffffffff81a5743c>] ret_from_fork+0x7c/0xb0
[   13.276144]  [<ffffffff810fb198>] ? kthread_create_on_node+0x16f/0x16f
[   13.276150] ---[ end trace 3c57e8c3743333ed ]---
[   13.277434] scsi 5:0:0:0: Attached scsi generic sg2 type 5

Full dmesg is attached.

Thanks,
Fengguang